HomeOrdering & InfoSupport ForumFAQ'sContact UsReseller FinderFree Catalog

KBS Coatings - Rust Stops Here.

SHIPPING: Under $50, only $5 | Over $50, FREE!

Prep Products
Rust Prevention
Tank Sealer
Motorcycle Resto Kits
Cavity Wax
Clear Coats
Engine Paint
High Temperature Paints
Self-Etch Primers
Paint/Tank Stripper
Restoration Kits
Putty, Fillers, Patches
Spray Guns
Disposable Gloves
Work Gloves
KBS Gear
KBS Work Gear
Directions Pages
Application Flow Charts
Instructional Videos
The KBS 3 Step
Rust Prevention System
The KBS 3 Step
Tank Sealing System
Spraying Guidelines
KBS Klean
Concrete Sealer
Tank Sealer
Fusion Self-Etching
Motor Coater
XTC Zinc Primer
Fix-It Guides
Tech Support Forum
Step-by-Step Procedure
SEMA Member
Payment Processing
Home > Cavity Wax

Cavity Coater

review 23 Reviews +See Reviews
Write a Review Write a Review
Cavity Coater

The Perfect Solution for hard to reach areas that are prone to rusting! Cavity Coater is a one-step, super-penetrating corrosion inhibiting coating (CIC) for long term protection on all metal surfaces. KBS Cavity Coater provides a self healing film which renders over 4000+ hrs salt spray protection...over 4 times the protection of conventional cavity waxes.

17.5 oz Aero w/36" Cavity Wand ... $34.95
17.5oz Aero ... $24.95
Quart ... $34.95 | Gallon ... $99.95

In Stock & Ready To Ship!
Ships Same Day!
+More Info

Part #:75

**You can also order a Cavity Wand separately to spray your Cavity Coater Aerosol.**

Cavity Coater Overview

Cavity Coater - Cavity Wax

Cavity Coater is a one-step, super-penetrating corrosion inhibiting coating (CIC) for long term protection on all metal surfaces.

Cavity Coater provides a self healing film which renders over 4000+ hrs salt spray protection (meaning Insane Rust Protection) ...over 4 times the protection of conventional cavity waxes.

Use Cavity Coater with a KBS Cavity Wand to give long lasting protection for those hard to reach enclosed cavities such as rocker panels, boxed frames, inside doors & fenders, deck lids, tailgates...and more.

Cavity Coater Features

  • 4000+ Hrs Salt Spray (Insane Rust Protection)
  • Creeps into Welds & Seams
  • Wicks & penetrates where primers and topcoats cannot
  • Water Displacing
  • Self Healing
  • Easy Application
  • Ultra Long Lasting
  • Multi-Surface Uses
  • Forms Capillary Action
  • Lubricating properties
  • Minimizes parts replacement costs
  • Enables faster dis-assembly when repairs are needed
  • Protects against carbon fusion
  • Resists alkaline solutions, most chemical & acid vapors, road salt, steam, salt water.

Cavity Coater Applications

Automotive: Boxed frames • Rocker panels • Inside doors • Inside car & trailer frame rails • Windshield cowls • trunk lids • Hoods • Inside A-Posts • Inside B-Posts • Inside front & rear fenders & Inside tailgates • Back sides of bumpers • Weld seams (Wicks into welds & seams) • Insulating between unlike metal surfaces • Use wherever a typical cavity wax would be used.

Anti-Seize/Anti-Corrosion: Nuts, bolts & screws • Shafts • Pipe ?ttings • Gaskets • Press ?t assemblies • Valve assemblies • Taps & drills • Pump mountings • Packing glands • Chain drives • Metal ?ttings • Machinery

Cavity Coater Coverage

  • 17.5oz Aerosol of Cavity Coater will coat 125 sq. ft. @ 1 mil thickness.
  • Quart of Cavity Coater will coat 200 sq. ft. @ 1 mil thickness.
  • Gallon of Cavity Coater will coat 800 sq. ft. @ 1 mil thickness.

Directions & Information Pages

Cavity Coater
Cavity Coater
on the KBS Support Forum
Cavity Coater FAQ's  
Search The KBS Support Forum
Other Customers Also Bought...
36" Reusable Cavity Wand Featuring 360° Spray Tip
KBS Klean
KBS Klean
Customer Reviews - Others Say It Best +See All Reviews
review 23 Total Reviews Sorting:
Rating Good Coverage
First time using Cavity Coater. Pros. Appears to have very good coverage with extension hose and spray tip. Only time will tell as to how effictive it is. Cons. Too expensive
Reviewed by:  from Alexandria, Va.. - 1/2/2018
Rating Woosh!
Boy this stuff comes out F-A-S-T, making a giant mess if there's any way for it to escape from the cavity. You can almost use it to hose down parts while you coat The up-side is, I was able to coat the outside of my parts too - using the leftovers I had to mop up with a rag. Don't take this wrong, I like the product, just wasn't prepared for the mess.
Reviewed by: (Verified Buyer)  from Raleigh, NC. - 12/14/2017
Rating Seems to be great stuff
I used it on a new rocker panel and it seeped out of every seam and drain, made a mess of my floor but, I like that it goes everywhere inside the panles.
Reviewed by:  from Milford. - 11/29/2017
Rating I HAVE to review this!
I usually don't leave reviews, but this is a pretty good product. Tried it last year on a project and was impressed, so I've been doing some testing here recently. Sprayed one light coat on a new piece of flat steel, and 6 weeks later the coated area looks new, while the uncoated area is surface rusted. It's seen plenty of rain and sun in 6 weeks, and a bit of ice this week. I keep damp about once a day and water beads right off the coated section. Totally dry and has not left a film, but still protects, pretty awesome to me. I'm a mechanic by trade and the cavity wand is awesome to reach the impossible. Try this stuff!!!
Reviewed by:  from Dover, Delaware. - 11/25/2017
Rating Cavity Coater
Easy to use..Happy with product..I will get back to you with further review after winter..But I am confident it will do everything you claim..Thank you for the quick shipping
Reviewed by:  from Rochester ,New York. - 10/23/2017
Rating Works Great!
Product works great.
Reviewed by:  from Peachtree City. - 10/3/2017
Rating Good stuff
Gets into places nothing else can reach. I do however wish the 360 tip had more holes around the perimeter.
Reviewed by:  from Ohio. - 9/11/2017
Rating Easy To Apply, Works Great
I saw the Utube video of the guy fixing his rusty bottom of his car doors. It seemed simple so I ordered the stuff to do it. This products was easy to use. But the spray tip on the can, put the hose in the holes already on the inside of the car door and spray until the entire inside was coated. Some leaked out a hole and was easy to wipe up with a cloth danmp with mineral spirits. Great to be able to seal the car door up from the inside out! Highly Recommend!
Reviewed by:  from Fresno, CA. - 4/26/2017
Rating Used on Swing Set
I used this to coat the inside of a sing set because swing sets always rust and I needed to prevent that. It was easy to spray all over the inside of the metal tubing. I'm excited to have a coating on the inside of the swing set!
Reviewed by:  from Evansville, IN. - 4/26/2017
Rating Does exactly as described.
Does exactly what it said it would. Just be careful when applying it, as it'll drip out of the car. It's a solid product, when it dries it does not want to come up, so now I've got KBS cavity coating stuck on my driveway, at least I know it'll protect my Miata's rocker panels!
Reviewed by:  from Leesburg. - 4/25/2017
Review Cavity Coater
(0 items)
Subtotal $0

Special Promos!

Orders Over $150
Free KBS T-Shirt

Sign Up Today!
Free Catalog
FREE Catalog - KBS Coatings
KBS Coatings on Facebook


KBS Coatings on YouTube


KBS Coatings on YouTube


KBS Coatings on Twitter


KBS Coatings on Google Plus

Google Plus

KBS News/
KBS Blog
Mail/Fax Order Form
About Us
Contact Us
SDS Sheets
Shipping Info
Return Policy
Create an Account
My Account
Customer Before &
After Photos
What Others Are Saying About KBS Coatings
KBS Coatings in Magazines
We Want
Before/After Pictures
Part Numbers
Find a Location
Near You
How Do I Become
A KBS Reseller?
KBS Coatings - Canada